Inflatable bed



FIG. 1 is a front perspective view of an inflatable bed showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The broken lines shown in the drawings represent portions of the inflatable bed that form no part of the claimed design. 

CLAIM The ornamental design for an inflatable bed, as shown and described. 